-define void @test6() personality i32 (...)* @__CxxFrameHandler3 {
-entry:
- invoke void @f()
- to label %invoke.cont unwind label %left
-invoke.cont:
- invoke void @f()
- to label %exit unwind label %right
-left:
- cleanuppad []
- br label %shared
-right:
- catchpad []
- to label %right.catch unwind label %right.end
-right.catch:
- br label %shared
-right.end:
- catchendpad unwind to caller
-shared:
- %x = call i32 @g()
- invoke void @f()
- to label %shared.cont unwind label %inner
-shared.cont:
- unreachable
-inner:
- %i = cleanuppad []
- call void @h(i32 %x)
- cleanupret %i unwind label %right.end
-exit:
- ret void
-}
-; %inner is a cleanup which appears both as a child of
-; %left and as a child of %right. Since statically we
-; need each funclet to have a single parent, we need to
-; clone the entire %inner funclet so we can have one
-; copy under each parent. The cleanupret in %inner
-; unwinds to the catchendpad for %right, so the copy
-; of %inner under %right should include it; the copy
-; of %inner under %left should instead have an
-; `unreachable` inserted there, but the copy under
-; %left still needs to be created because it's possible
-; the dynamic path enters %left, then enters %inner,
-; then calls @h, and that the call to @h doesn't return.
-; CHECK-LABEL: define void @test6(
-; CHECK: left:
-; CHECK: to label %[[SHARED_CONT_LEFT:.+]] unwind label %[[INNER_LEFT:.+]]
-; CHECK: right:
-; CHECK: to label %right.catch unwind label %right.end
-; CHECK: right.catch:
-; CHECK: %x = call i32 @g()
-; CHECK: store i32 %x, i32* %x.wineh.spillslot
-; CHECK: to label %shared.cont unwind label %[[INNER_RIGHT:.+]]
-; CHECK: right.end:
-; CHECK: catchendpad unwind to caller
-; CHECK: shared.cont:
-; CHECK: unreachable
-; CHECK: [[SHARED_CONT_LEFT]]:
-; CHECK: unreachable
-; CHECK: [[INNER_RIGHT]]:
-; CHECK: [[I_R:\%.+]] = cleanuppad []
-; CHECK: [[X_RELOAD_R:\%.+]] = load i32, i32* %x.wineh.spillslot
-; CHECK: call void @h(i32 [[X_RELOAD_R]])
-; CHECK: cleanupret [[I_R]] unwind label %right.end
-; CHECK: [[INNER_LEFT]]:
-; CHECK: [[I_L:\%.+]] = cleanuppad []
-; CHECK: [[X_RELOAD_L:\%.+]] = load i32, i32* %x.wineh.spillslot
-; CHECK: call void @h(i32 [[X_RELOAD_L]])
-; CHECK: unreachable
-
-
-define void @test7() personality i32 (...)* @__CxxFrameHandler3 {
-entry:
- invoke void @f()
- to label %invoke.cont unwind label %left
-invoke.cont:
- invoke void @f()
- to label %unreachable unwind label %right
-left:
- cleanuppad []
- invoke void @f() to label %unreachable unwind label %inner
-right:
- catchpad []
- to label %right.catch unwind label %right.end
-right.catch:
- invoke void @f() to label %unreachable unwind label %inner
-right.end:
- catchendpad unwind to caller
-inner:
- %i = cleanuppad []
- %x = call i32 @g()
- call void @h(i32 %x)
- cleanupret %i unwind label %right.end
-unreachable:
- unreachable
-}
-; Another case of a two-parent child (like @test6), this time
-; with the join at the entry itself instead of following a
-; non-pad join.
-; CHECK-LABEL: define void @test7(
-; CHECK: invoke.cont:
-; CHECK: to label %[[UNREACHABLE_ENTRY:.+]] unwind label %right
-; CHECK: left:
-; CHECK: to label %[[UNREACHABLE_LEFT:.+]] unwind label %[[INNER_LEFT:.+]]
-; CHECK: right:
-; CHECK: to label %right.catch unwind label %right.end
-; CHECK: right.catch:
-; CHECK: to label %unreachable unwind label %[[INNER_RIGHT:.+]]
-; CHECK: right.end:
-; CHECK: catchendpad unwind to caller
-; CHECK: [[INNER_RIGHT]]:
-; CHECK: [[I_R:\%.+]] = cleanuppad []
-; CHECK: [[X_R:\%.+]] = call i32 @g()
-; CHECK: call void @h(i32 [[X_R]])
-; CHECK: cleanupret [[I_R]] unwind label %right.end
-; CHECK: [[INNER_LEFT]]:
-; CHECK: [[I_L:\%.+]] = cleanuppad []
-; CHECK: [[X_L:\%.+]] = call i32 @g()
-; CHECK: call void @h(i32 [[X_L]])
-; CHECK: unreachable
-; CHECK: unreachable:
-; CHECK: unreachable
-; CHECK: [[UNREACHABLE_LEFT]]:
-; CHECK: unreachable
-; CHECK: [[UNREACHABLE_ENTRY]]:
-; CHECK: unreachable
-
-
-define void @test8() personality i32 (...)* @__CxxFrameHandler3 {
-entry:
- invoke void @f()
- to label %invoke.cont unwind label %left
-invoke.cont:
- invoke void @f()
- to label %unreachable unwind label %right
-left:
- cleanuppad []
- br label %shared
-right:
- catchpad []
- to label %right.catch unwind label %right.end
-right.catch:
- br label %shared
-right.end:
- catchendpad unwind to caller
-shared:
- invoke void @f()
- to label %unreachable unwind label %inner
-inner:
- cleanuppad []
- invoke void @f()
- to label %unreachable unwind label %inner.child
-inner.child:
- cleanuppad []
- %x = call i32 @g()
- call void @h(i32 %x)
- unreachable
-unreachable:
- unreachable
-}
-; %inner is a two-parent child which itself has a child; need
-; to make two copies of both the %inner and %inner.child.
-; CHECK-LABEL: define void @test8(
-; CHECK: invoke.cont:
-; CHECK: to label %[[UNREACHABLE_ENTRY:.+]] unwind label %right
-; CHECK: left:
-; CHECK: to label %[[UNREACHABLE_LEFT:.+]] unwind label %[[INNER_LEFT:.+]]
-; CHECK: right:
-; CHECK: to label %right.catch unwind label %right.end
-; CHECK: right.catch:
-; CHECK: to label %[[UNREACHABLE_RIGHT:.+]] unwind label %[[INNER_RIGHT:.+]]
-; CHECK: right.end:
-; CHECK: catchendpad unwind to caller
-; CHECK: [[INNER_RIGHT]]:
-; CHECK: to label %[[UNREACHABLE_INNER_RIGHT:.+]] unwind label %[[INNER_CHILD_RIGHT:.+]]
-; CHECK: [[INNER_LEFT]]:
-; CHECK: to label %[[UNREACHABLE_INNER_LEFT:.+]] unwind label %[[INNER_CHILD_LEFT:.+]]
-; CHECK: [[INNER_CHILD_RIGHT]]:
-; CHECK: [[TMP:\%.+]] = cleanuppad []
-; CHECK: [[X:\%.+]] = call i32 @g()
-; CHECK: call void @h(i32 [[X]])
-; CHECK: unreachable
-; CHECK: [[INNER_CHILD_LEFT]]:
-; CHECK: [[TMP:\%.+]] = cleanuppad []
-; CHECK: [[X:\%.+]] = call i32 @g()
-; CHECK: call void @h(i32 [[X]])
-; CHECK: unreachable
-; CHECK: [[UNREACHABLE_INNER_RIGHT]]:
-; CHECK: unreachable
-; CHECK: [[UNREACHABLE_INNER_LEFT]]:
-; CHECK: unreachable
-; CHECK: [[UNREACHABLE_RIGHT]]:
-; CHECK: unreachable
-; CHECK: [[UNREACHABLE_LEFT]]:
-; CHECK: unreachable
-; CHECK: [[UNREACHABLE_ENTRY]]:
-; CHECK: unreachable
-
-
-define void @test9() personality i32 (...)* @__CxxFrameHandler3 {
-entry:
- invoke void @f()
- to label %invoke.cont unwind label %left
-invoke.cont:
- invoke void @f()
- to label %unreachable unwind label %right
-left:
- cleanuppad []
- call void @h(i32 1)
- invoke void @f()
- to label %unreachable unwind label %right
-right:
- cleanuppad []
- call void @h(i32 2)
- invoke void @f()
- to label %unreachable unwind label %left
-unreachable:
- unreachable
-}
-; This is an irreducible loop with two funclets that enter each other;
-; need to make two copies of each funclet (one a child of root, the
-; other a child of the opposite funclet), but also make sure not to
-; clone self-descendants (if we tried to do that we'd need to make an
-; infinite number of them). Presumably if optimizations ever generated
-; such a thing it would mean that one of the two cleanups was originally
-; the parent of the other, but that we'd somehow lost track in the CFG
-; of which was which along the way; generating each possibility lets
-; whichever case was correct execute correctly.
-; CHECK-LABEL: define void @test9(
-; CHECK: entry:
-; CHECK: to label %invoke.cont unwind label %[[LEFT:.+]]
-; CHECK: invoke.cont:
-; CHECK: to label %[[UNREACHABLE_ENTRY:.+]] unwind label %[[RIGHT:.+]]
-; CHECK: [[LEFT_FROM_RIGHT:.+]]:
-; CHECK: call void @h(i32 1)
-; CHECK: call void @f()
-; CHECK: unreachable
-; CHECK: [[LEFT]]:
-; CHECK: call void @h(i32 1)
-; CHECK: invoke void @f()
-; CHECK: to label %[[UNREACHABLE_LEFT:.+]] unwind label %[[RIGHT_FROM_LEFT:.+]]
-; CHECK: [[RIGHT]]:
-; CHECK: call void @h(i32 2)
-; CHECK: invoke void @f()
-; CHECK: to label %[[UNREACHABLE_RIGHT:.+]] unwind label %[[LEFT_FROM_RIGHT]]
-; CHECK: [[RIGHT_FROM_LEFT]]:
-; CHECK: call void @h(i32 2)
-; CHECK: call void @f()
-; CHECK: unreachable
-; CHECK: [[UNREACHABLE_RIGHT]]:
-; CHECK: unreachable
-; CHECK: [[UNREACHABLE_LEFT]]:
-; CHECK: unreachable
-; CHECK: [[UNREACHABLE_ENTRY]]:
-; CHECK: unreachable
-
-